It took me about four rolls of film (expensive) to figure out that "B" meant bulb mode. Bulb mode means that the camera's shutter is open for as long as you hold down the shutter button. So I took dozens of pictures with really long shutter speeds. But I know better now. I also figured out that it works best in low light since slow shutter speed lets in more light. These were shot with my La Sardina Camera. I was trying to catch the moving cars. But I guess that is one of the great parts about Lomography. It is more about experimentation than perfection. (What is Lomography?)